Rotary engine.



E. J. M. MADERO..

ROTARY ENGINE.

APPLICATION TILED MAY 17, 1912.

1,048,844. Patented Dec. 31, 1912.

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APPLIOA'I'IOH FILED HAY 17, 19 12.

1,048,844. Patented Dec. 31, 1912.

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- ROTARY ENGINE.

. Specification of Patent.

Patented Dec. 31,1912.

Application filed m 17, 191a Serial No. 697,912

v To allwhom it may concern Be it known that I, EDUARDO Josn Mam iIADERo, a citizenof the Argentine Repulr 11c, residing at Buenos Aires, Argentina,

have invented certain new and useful Im' provementsin Rotary Eng1nes,.in which the following is a specification.

The present invention relates to rotary engines and is distinguished by thefact that none of the parts effect reciprocal rectilineous movements and that the admission at the and exhaust of energy initiate their action plunger; owing to this circumstance, the engine has no dead center and a reversal is readily-0btained,in'any position 'and direction of stroke of the reversing the circulation of energy in the respective passages by means of distribution chamber.

. The invention comprises a chamber formed by two hollow semi-circular parts a so joined together that they will form a perfeet circle. parts have a recess and when the plates are ]01ned, said At each point of union, said recesses form two cavities at two diametrically opposed points; within said cavities are fitted the obturating disks, the motion'of which is simultaneous and is 'Iefi'ected 'by means of a set of helical gears actuated by a central shaft to -which movement is .im-

parted from the plunger.

' give passage to the circular chamber.

. The movement of the obturating disks is such that, when the engine is running in either lunger, until the :other has entirely closed the same at the opposite point. Thus one ortheother of the said obturating disks obtu'rates at the corresponding side of the'opening or port of the getherwith the fact that the point of admission and exhaust of energy is situated within the rotary plunger, allows .of the engine to. yield a constant and invariable amountof force during its entire stroke or revolution, presuming, of course, that the admission of energy takes place without interruption; I

have "the engine working by taking advantage-of expansion, interrupttlie admission of energy at the required instant-by means of anJobturating device combined with the motion of plunger.

plunger, by merely a common .F

plate provided with a circular direction one disk will not commence.

to open the port oithe chamber, in orderto ,would This circumstance, to-..

rings 11 the width If it be desired, however, to.

it will be necessary to the v The plunger is conveniently secured to a fly wheel provided with circular grooves and webs whichv engage with annular grooves formed at each side of the central opening of the chamber in order to obtain a perfect fitting between the chamber, and the fly wheel. Steam under'high pressure may be caused vto circulate through said grooves for the purpose of considerably. decreasing friction.

In the accompanying drawings forming part of the specification: Figure 1 is a side elevation of a rotary engine, constructed according to my invention. Fig. 2-is a horizontal section view of the same, on 'the line AVB of Fig.1. F ig. 3 is a side elevation, partially'in section, opposite to that of igi 1. Fig. 4 is a sectional elevation'on the line C--D of Fig. 1." I In said drawings, 1 indicates hollow semicircular casings, provided with flange plates 2 which are connected together by means of the bolts 3, said casings constituting an annular chamber- This casing has, a slot in its inner periphery which is closed by a circular projection or boss 4' formed on a fly wheel 5, a perfect joint between the fly wheel and casing being obtained by means of webs and circular gr0oves'6, formed in the periphery of the fly wheel and in the casing on each side of the said slot. By means of this arrangement, the casing itself forms a bearing in which the fly wheelrotates and in order to avoid any possible yieldin or shifting of the .wheel which be caused at a certain=stage of the working of the engine by the pressure exerted at definite portions of'the chamber, the shaft 7 which is driven bythe fly is maintained in posit-ion by means of bearings' 8 and 9, firmly secured at each side ofthe casing by means ofi radial arms'suitably fixedtothesame. To the circular boss of projection-4 is conlveniently secured a .plunger' or piston "10 which has keyed of which are somewhat reater than thethickness of'the obturating isks hereinafter described. A plate 12 is inserted between the circular projectionr' i; and the plunger 10 and not'only. serves to gluide the latter, but also serves to perfectly c ose the chamber v tween the plunger and the flywheel.

' As shown Fig.

wheel,

at the-point of union be onto its periphery" two riio' 3,'the plunger is divided I transversely by a partition 13 which forms 25 obturating disks 21 and 22- Said disks are --communicate with supply and exhaust pipes .which said pip disposing within -the faces against which the energizing medium acts. Passing through the inner periphery of the plunger and at each side of said partition 13, are ducts 14 and 15, for the'admission and exhaust of said medium according to the direction in which the engine is running. Said ducts or passages A counterweight 20 is fixed to the fly wheel to counterbalan'ce the weight of the plunger, at the point opposite to the center and to cause a rotary movement to take place without eccentricity and therefore without giving rise to vibration.

The flange plates 2, when connected, form recesses in which are mot-ably mounted the arranged diametrically opposite at each side of the chamber and are fixed to respective shaft 23 driven by helical gear'wheels 24.

Both wheels-are driven in the same direction by other similar wheels 25, mounted on a common shaft 26 maintained in position by bearings 27 and driven by helical gear wheel 28' which gears with a'similar wheel 29 of the same diameter fixed to the main shaft 7.

By means of this arrangement the number of revolutions made by the plunger is exactly the same as that of the disks. The relation between the plunger and the disks is such, that in either direction of running "of the engine, at theQinstant in which the plunger is going to pass the point where one ofthe disks is situated, this latter will present its out out part before the opening of the chamber and will therefore permit the passage of the plunger, while the-opposlte disk will keep said opening closed 'until, at its turn', it arrives at the stage to leave the same open.

The working of the engine is as follows:

Supporting the engine to be in the position shown in Fig. l, which as will be seen by referring also to Fig. 2, is precisely the instant in which the chamber is closed at both parts by the disks 21 and 2-2, it follows that if an energizing agent is admitted through the passage 14, the passage 15 be left open for exhaust, pressure will be exerted against the disk 21 and the corresponding face of the partition 13, by which the motion of the-plungeris initiated and continued toward the right. If the energizing agent be admitted through the passage 15, the motion-will be in the reverse direction.

Owing to' the form in which the movement of the obturating disks is combined with that of the plunger and to the fact that 1 the admission and exhaust of energy have their initial point of action at the'said plun'- ger, the engine has no dead center in any position in which motion is started or reversed.

It is clear that all movements of the engine being rotatory, the latter may work at a low or high rate of speed, without causing'vibration and without any of its parts by speed in engines of other types.

As hereinbeforestated, the motive power developed by theengine is constant during the entire revolution or stroke of the plunwithout interruption. \Vhen it is desired to have the engine work partially by energy andpartially by expansion of the same, it will be necessary to obturate the admission duct at the convenient'moment which may be readilydone by means of any valve device, acted upon by the engine. pressure or that produced by the combustion of gases, may be used for Working the engine.

I claim:

1. A rotary engine comprising an annular piston chamber, a piston revoluble therein, rotatable. obturating members at opposite points of the chamber, a shaft mounted axially of the chamber connected with and rotated by said piston, a shaft mounted transversely of the axial shaft, and gearing connecting the transverse shaft to the disks and to the axial shaft to actuate said members.

2. A rotary engine comprising an annular piston chamber, a piston revoluble therein, rotatable obturating members at opposite oints of the chamber, a shaft mounted axinecting the transverse shaft to the disks and to the axial shaft, adapted to impart a complete rotation of the members at each revolution of the piston.

3. A rotary engine comprising an annular piston chamber, a piston revol-uble therein, radial obturating disks mounted chamber at opposite points and having openings for the passage of the piston, a shaft mounted axially of the chamber connected with and rotated by the piston, actuating shafts carrying said disks, and a shaft mounted transversely of the axial shaft geared to the latter and to the actuating shafts. y I

4. A rotary engine comprising an .annular piston chamber, a piston revoluble there-v in, radial obturating disks mounted in the chamber at opposite points and having openings for the passage of the piston, a shaft Steam ally of the chamber connected with and-ro tated by said piston, a shaft mounted transversely of the axial shaft and gearing conmounted axially of the chamber connected being exposed to fracture such as are causedv ger-if the admission of energy be carried out a with and rotated by the piston, actuating Signed at Buenos Aires, Argentina, this shafts carrying said disks, worms on the 26th day of March. 1912. actuating shafts, a shaft mounted J transversely of the axial shaft, Worms on the EDUARDO JOSE MARIA MADERO. 5 transverse shaft meshing with the aforesaid worms, and a worm on the axial shaft Witnesses: inter-meshing with a worm on the transverse GUSTAVO VON BESTEN, shaft. H. R. HEFFETER. 

